Flue or tube cutter.



No. 818,213. PATENTED APR. 17, 1906. D. W. AMOS & G. H. JONES.

FLUE OR TUBE BUTTER,

APPLICATION FILED IULYll. 1905.

' tube A, and the tube A is provided at its UNITED STATES PALEENT onnron'. DANIEL W. AMOS AND CHARLES H. JONESTOF SAXTON, PENNSYLVANIA.

FLUE OR TUBE CUTTER.

No. 818,213. Specification of Letters Patent. 1 Patented April 17, 1906.

Application filed July ,11, 1905. Serial No. 269,178.

tool at the forward end of the lever B a greater distance beyond the periphery of the tube A. The upper end of the cam-lever E is pivotally connected to a rod F, the otherend of the rod being secured into a block G, pivoted between the ears A, secured to the tube A. Knurled nuts H are secured to the rod F each side of the extension D, extending upward from the sleeve D, so that by turning the nuts H the lower end of the camlever E will be gradually moved forward, thus raising the cutting-tool, and if the whole device is revolved by means of a wrench or crank placed upon the squared end D extending from the end of the sleeve D, the tube or flue will be cut. The nuts II are turned in the opposite direction to lower the cutting-tool.

When this device is used and turned by hand, the nuts H afford the means for feeding the cutter; but when the device is used in connection with power the motor which revolves the device will also have a screw-feed which will press against the sleeve and gradually force the same forward along the tube A, and as the upper surface of the rearward end of the lever B inclines upward toward the pivot the cam-lever will gradually-deress this rearward end of the lever B and feed the cutter upward at the same time the device is being rotated.

I is a collar adapted to be slipped onthe forward end of the tube A to limit the distance the cut is made from the end of-the tube'or flue.

It will thus be seen that we have provided a simple but efficient and durable tool which will cut fiues or tubes quickly and effectively, and the parts be To all whom it may concern:

Be it known that we, DANIEL W. Aims and CHARLES H. JoNEs, citizens of the United States, residing at Saxton, county of Bed ford, and State of Pennsylvania ,have invented a certain new and useful Improvement in Flue or Tube Cutters, of which the following is a specification.

Our invention relates to a new and useful improvement in flue or tube cutters, and has for its object to provide a new, novel, and effective means for easily and speedily cutting flues or tubes in boilers.

With this end in view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claim.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accompanying drawings, forming a part of this specification, in which Figure 1 is a longitudinal section through our improved device; Fig. 2, a plan view 0 the device; Fig. 3, a section taken on the line 3 3 of Fig. 1.

A represents a tube or tubular portion of the device, which is provided about midway its length with two ears A, extending upward therefrom, between which ears is pivoted a lever B, and journaled in the forward end of said lever is the cutting-tool C, which is in the shape of a double-beveled disk. The tube A is slotted upon its upper side to conform to the shape of the lever B and allow the cutting-tool C to protrude beyond the periphery of the same.

D is a sleeve closed at its rearward end adapted to slip over the rearward end of the being few in number will specially strong, and the whole device will be positive in its working and will not easily get out of order Having thus fully described our invention, what we claim as new and useful is In a device of the character described, a tubular portion, the forward end of which is adapted to be inserted within the flue or tube to be cut, means for limiting the depth of the insertion, two ears extending upward from the tubular portion a distance apart, a lever ivoted between the two ears and lying within the tubular portion, the tubular portion being slotted the length of the lever and in conformity to the shape of the same, a rotary cutting-tool journaled in the forward end of said lever and adapted to protrude beyond rearward end with a feather or enlargement over which the sleeve D extends to prevent the sleeve D and tube A from turning relative to one another.

E is a cam-lever which is pivoted intermediate of its two ends to the sleeve D and extends downward through an opening formed in the sleeve through the slot in the tube A, and the lower end of the cam-lever bears against the rearward end of the leverB. This lower end of the cam-lever is curved toward the rear, so that when it is pushed forward it will bear downward upon the rearward end of the lever B, and therefore raise the cuttingthe periphery of the tubular portion, a sleeve I tion, an extension extending upward from I adapted to slide over the rearward end of the the sleeve, nuts threaded upon the screw- 15 tubular portion, a cam-lever pivoted interl threaded rod each side of said extension, and I mediate of its two ends to the sleeve, the a Wrench-hold formed upon the outer end of lower end of the earn-lever being curved reari the sleeve, as and for the purpose specified. wardly and bearing against the upper surface I In testimony whereof we have hereunto of the rearward end of the cutting-tool lever l affixed our signatures in the presence of two 20 so that when the lower end of the cam-lever f subscribing witnesses.

is forced forward the rearward end of the le- DANIEL W. AMOS. ver will be depressed, a screw-threaded rod CHARLES H. JONES. pivoted to the upper end of the cam-lever, the other end of the rod pivoted between the l ears extending upward from the tubular por- Witnesses:

L. S. RAMSEY, W. L. GIBLONEY. 

